Inspection Procedure
- USE LEXUS HAND-HELD TESTER
- NO: Go to step 3
- YES:
- READ VALUE OF LEXUS HAND-HELD TESTER
- Check the transponder key ECU by the ECU data monitor.
Standard:
Transponder key ECU (switch condition)
TRANSPONDER KEY ECU SWITCH CONDITIONItem Condition Specified condition Key switch IG ON/Without key ON/OFF - OK: GO TO FLOW CHART OR PROBLEM SYMPTOM TABLE (See KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY (COURTESY LAMP SWITCH CIRCUIT) )
- NG: GO TO NEXT STEP
- Check the transponder key ECU by the ECU data monitor.
- INSPECT UNLOCK WARNING SWITCH ASSY
- Check the key unlock warning switch continuity.
KEY UNLOCK WARNING SWITCH CONTINUITY CONDITIONSCondition Tester connection Specified condition Switch OFF (Key removed) - No continuity Switch ON (Key set) 1 <--> 2 Continuity - NG: REPLACE UNLOCK WARNING SWITCH ASSY
- OK: GO TO FLOWCHART OR PROBLEM SYMPTOM TABLE (See KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY (COURTESY LAMP SWITCH CIRCUIT) )